Piezoelectric ceramic stacks for underwater transducers

Author

Nishamol, P.A. ; Ebenezer, D.D.

Author_Institution

Naval Phys. & Oceanogr. Lab., Kochi, India

fYear

2015

fDate

23-25 Feb. 2015

Firstpage

1

Lastpage

6

Abstract

An analytical model is presented of a stack of annular rings used in underwater Tonpilz and Flextensional transducers to radiate high acoustic power. The length of each ring is much less than the average diameter. The model is based on exact solutions to exact piezoelectric governing equations for rings. Boundary and continuity conditions are satisfied in an average sense. It is shown that the computed resonance frequencies are more accurate than those obtained using a one-dimensional model by comparing them with those obtained using ATILA - a finite element package.

Keywords

finite element analysis; piezoceramics; piezoelectric transducers; underwater sound; ATILA; acoustic power; annular rings; boundary conditions; continuity conditions; finite element package; flextensional transducers; piezoelectric ceramic stacks; resonance frequency; underwater tonpilz; underwater transducers; Analytical models; Computational modeling; Finite element analysis; Mathematical model; Resonant frequency; Stress; Transducers; Axisymmetric model; Barrel-Stave transducer; axially polarized rings; input electrical admittance; length mode resonance;

fLanguage

English

Publisher

ieee

Conference_Titel

Underwater Technology (UT), 2015 IEEE

Conference_Location

Chennai

Print_ISBN

978-1-4799-8299-8

Type

conf

DOI

10.1109/UT.2015.7108217

Filename

7108217